PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/29-07:42:30
G02     230.7          71.5                6.2 +/-    0.55       6.5 +/-    0.55  0.060 / 0.090
G05     174.4          11.3               -1.4 +/-   17.11      -3.8 +/-   17.11  0.090 / 0.100
G06     42.4           65.9                5.1 +/-    0.73       5.5 +/-    0.73  0.240 / 0.270
G12     320.8          45.9                5.2 +/-    0.46       6.9 +/-    0.46  0.110 / 0.220
G17     68.1           22.9                5.3 +/-    3.51      10.8 +/-    3.51  0.040 / 0.040
G19     50.1           43.2                6.5 +/-    0.97       9.0 +/-    0.97  0.060 / 0.050
G24     245.5          37.2                7.0 +/-    1.05      10.7 +/-    1.05  0.030 / 0.030
G25     315.7          13.1                3.3 +/-    2.41       8.7 +/-    2.41  0.030 / 0.020